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because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

if someone had the list of traits you provided